Each serving of Optimum Nutrition 100% Natural Oats & Whey packs in 24 grams of all-whey protein and as much fiber as a big bowl of oatmeal. Better yet, it tastes great, and it goes down easy. As the name suggests, Natural 100% Oats & Whey is free of artificial flavors, sweeteners, and synthetic colors. So naturally, it's great for breakfast, after workouts, and any time that you're looking for an on-the-go meal.